The first gum came from trees -- There are more than one thousand flavors -- There is gum that perfumes your skin -- Chewing gum can be a healthy habit -- Chewing uses a lot of energy -- The biggest gum was the size of a person -- Americans make the most chewing gum -- Chewing gum is banned in Singapore -- People make art from chewed gum -- Gum does not stay in your stomach -- Prove it! -- Timeline